chrome/browser/extensions/token_cache/token_cache_service.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_SERVICE_H_
   6 #define CHROME_BROWSER_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_SERVICE_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/basictypes.h"
  12 #include "base/compiler_specific.h"
  13 #include "base/time/time.h"
  14 #include "components/keyed_service/core/keyed_service.h"
  15 #include "components/signin/core/browser/signin_manager_base.h"
  16
  17 class Profile;
  18
  19 namespace extensions {
  20
  21 // This class caches tokens for the current user.  It will clear tokens out
  22 // when the user logs out or after the specified timeout interval, or when
  23 // the instance of chrome shuts down.
  24 class TokenCacheService : public KeyedService,
  25                           public SigninManagerBase::Observer {
  26  public:
  27   explicit TokenCacheService(Profile* profile);
  28   ~TokenCacheService() override;
  29
  30   // Store a token for the currently logged in user. We will look it up later by
  31   // the name given here, and we will expire the token after the timeout.  For a
  32   // timeout of 0, we never expire the token.  After time_to_live expires, the
  33   // token will be expired.
  34   void StoreToken(const std::string& token_name, const std::string& token_value,
  35                   base::TimeDelta time_to_live);
  36
  37   // Retrieve a token for the currently logged in user.  This returns an empty
  38   // string if the token was not found or timed out.
  39   std::string RetrieveToken(const std::string& token_name);
  40
  41   // KeyedService:
  42   void Shutdown() override;
  43
  44  private:
  45   friend class TokenCacheTest;
  46   FRIEND_TEST_ALL_PREFIXES(TokenCacheTest, SignoutTest);
  47
  48   // SigninManagerBase::Observer:
  49   void GoogleSignedOut(const std::string& account_id,
  50                        const std::string& username) override;
  51
  52   struct TokenCacheData {
  53     std::string token;
  54     base::Time expiration_time;
  55   };
  56
  57   // Map the token name (string) to token data.
  58   std::map<std::string, TokenCacheData> token_cache_;
  59   const Profile* const profile_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(TokenCacheService);
  62 };
  63
  64 }  // namespace extensions
  65
  66 #endif  // CHROME_BROWSER_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_SERVICE_H_